PAC Racing Springs 1.550 Dual Valve Spring — Fits Circle Track Racing Engines

SKU: DHDL_PAC-1243
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About PAC Racing Springs

PAC Racing Springs engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PAC Racing Springs lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Professional Grade 1200 Series Dual Valve Springs

Dominate the track with the PAC Racing 1200 Series 1.550 Dual Valve Spring. Designed specifically for the rigors of circle track racing, this dual-spring configuration offers the structural integrity required for high-stress environments. The dual-spring design provides a safety redundancy and superior dampening characteristics, ensuring your valvetrain remains stable throughout the entire RPM range of your race engine.

Key Features and Specs

  • Spring Type: Dual Valve Spring
  • Spring Rate: 550 lb/in
  • Coil Bind: 1.150 in
  • Outside Diameter: 1.550 in
  • Application: Circle Track Racing

Built from premium materials to withstand extreme heat and high-frequency cycling, these springs are the choice of professional engine builders. The 550 lb/in spring rate ensures that your valves seat properly and maintain timing accuracy, even during prolonged endurance events. By choosing PAC Racing, you are investing in technology that has been proven on the most demanding tracks across the country. Whether you are performing a routine valvetrain refresh or building a new engine from the ground up, these springs provide the consistency you need to cross the finish line first. Upgrade your racing setup with high-quality components from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About PAC Racing Springs

PAC Racing Springs engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PAC Racing Springs lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Professional Grade 1200 Series Dual Valve Springs

Dominate the track with the PAC Racing 1200 Series 1.550 Dual Valve Spring. Designed specifically for the rigors of circle track racing, this dual-spring configuration offers the structural integrity required for high-stress environments. The dual-spring design provides a safety redundancy and superior dampening characteristics, ensuring your valvetrain remains stable throughout the entire RPM range of your race engine.

Key Features and Specs

  • Spring Type: Dual Valve Spring
  • Spring Rate: 550 lb/in
  • Coil Bind: 1.150 in
  • Outside Diameter: 1.550 in
  • Application: Circle Track Racing

Built from premium materials to withstand extreme heat and high-frequency cycling, these springs are the choice of professional engine builders. The 550 lb/in spring rate ensures that your valves seat properly and maintain timing accuracy, even during prolonged endurance events. By choosing PAC Racing, you are investing in technology that has been proven on the most demanding tracks across the country. Whether you are performing a routine valvetrain refresh or building a new engine from the ground up, these springs provide the consistency you need to cross the finish line first. Upgrade your racing setup with high-quality components from GGCRACING.

Product Details

Product Description

About PAC Racing Springs

PAC Racing Springs engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PAC Racing Springs lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Professional Grade 1200 Series Dual Valve Springs

Dominate the track with the PAC Racing 1200 Series 1.550 Dual Valve Spring. Designed specifically for the rigors of circle track racing, this dual-spring configuration offers the structural integrity required for high-stress environments. The dual-spring design provides a safety redundancy and superior dampening characteristics, ensuring your valvetrain remains stable throughout the entire RPM range of your race engine.

Key Features and Specs

  • Spring Type: Dual Valve Spring
  • Spring Rate: 550 lb/in
  • Coil Bind: 1.150 in
  • Outside Diameter: 1.550 in
  • Application: Circle Track Racing

Built from premium materials to withstand extreme heat and high-frequency cycling, these springs are the choice of professional engine builders. The 550 lb/in spring rate ensures that your valves seat properly and maintain timing accuracy, even during prolonged endurance events. By choosing PAC Racing, you are investing in technology that has been proven on the most demanding tracks across the country. Whether you are performing a routine valvetrain refresh or building a new engine from the ground up, these springs provide the consistency you need to cross the finish line first. Upgrade your racing setup with high-quality components from GGCRACING.

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